TAD 2404 Build

[richluvsound]

Its been a while folks ....

Many of you know Ari .... He's helped many of us get those components we've drooled over . He helped me get my 1500AL a few years ago .

Ari and I talk on the phone quite a bit and during one of these conversations he declares ownership of TAD's rare and highly prized parts for the 2404 studio monitor . I've been trying to help him sell the parts after he decided to go another direction ,but after 6 months no one has shown any serious interest ..... So then we decided to put them in cabinets to try and sweeten the deal . Now he's seen them he's not so sure he want s to part with them .

Theres still the grills to make and the stands ( in the same design and material as the speaker ) Some labels made by the Paolo in Italy . He did a wonderful job of the TAD 2251 project I did last year .

[Earl K]

Nice Rich!

I love the skid rails on the back of the cabinet ( protecting the crossover parts ) .

How about some more pics ( please ) ?

[Mr. Widget]

Yes, beautiful!

More please!


Widget

[grumpy]

Good to see evidence you're still at it
Cool project!

[richluvsound]

A few more of the build .

I don't think I have them hooked up correctly .... and no schematic .Any ideas would be greatly appreciated .

[pos]

Very nice indeed Rich!
The 2404 is the pinnacle of TAD technology and know-how

[Earl K]

A few more of the build .

I don't think I have them hooked up correctly .... and no schematic .Any ideas would be greatly appreciated .

Hi Rich,

I think your message is a bit too cryptic ( as a proper cry for help ).

Descriptions of ( initial impressions/disappointments ) are helpful ( assuming you can't provide any response captures ).

Ian ( Macka ) at one time had a network schematic for the double woofer model ( I'd suggest contacting him ).

Did you build the horns ( or are they someone elses handiwork) ?

[richluvsound]

Hi Rich,

I think your message is a bit too cryptic ( as a proper cry for help ).

Descriptions of ( initial impressions/disappointments ) are helpful ( assuming you can't provide any response captures ).

Ian ( Macka ) at one time had a network schematic for the double woofer model ( I'd suggest contacting him ).

Did you build the horns ( or are they someone elses handiwork) ?

The horns are original Earl .... The crossover is completely different to the TN 4 ... I've emailed GT sound for advice . I don't understand why they stopped making them .....even with the hook up issue I can hear what they do .

[johanwholst]

How would a damage like this occur? It does not look like the typical over excursion.

Anyways, I would expect that used drivers with a price tag like this to be seriously tested with tone generator and distortion measurements before shipping.
Hope the seller is resolving this issue..,

[hlaari]

here are the answers from the seller GT-sound http://www.gt-sound.com/



HI Ari Oskarsson

Is it alright for a while, how are you?

Did you finish the Speaker box?

TD-4003

① DC-7, 5 Ω is normal value.
AC measurement will result in 12 to 13 Ω.

② I checked the sound at the time of shipping, but there was no
abnormality.

We opened the back chamber of DRIVER UNIT of TAD, GTS, and diaphragm
I will not remove it.

1. It does not have jigs that make precise height adjustment when
setting again. I have a TAD service.

2. The material of the diaphragm is beryllium and it seems there is a
danger to the human body.

Best regards
K.Goto


I am 100% sure he did not opened the back cap

[richluvsound]

The back had not been opened for a few years .... It wasn't opened last year . GT.Sound ....

[Dr.db]

Thanks a lot!

[richluvsound]

Hi ,

you can't compare 04 and 02 ... 4003 and 4001 aren't the same to start with. 1.5" and 2" respectively . The 2404 use 1601c woofers ... and yes ,more like the A TS than the others .

My internal volume 183 ltrs subtract 12 for 1601,horn and bracing left me 171 .... there is more bracing in my copy, as that was an issue with the original . There is also no 18mm MDF in my build on 25mm BBP . The final tuning is spot on , more by luck than judgement . I have made a few changes . I never intended to build an exact copy, only that they were in the spirit of the original . These small changes were to get around copyright issues . And yes , I'll build another pair in the future and run them actively .


Richard .

[dn92]

Hi ,

you can't compare 04 and 02 ... 4003 and 4001 aren't the same to start with. 1.5" and 2" respectively . The 2404 use 1601c woofers ... and yes ,more like the A TS than the others .

My internal volume 183 ltrs subtract 12 for 1601,horn and bracing left me 171 .... there is more bracing in my copy, as that was an issue with the original . There is also no 18mm MDF in my build on 25mm BBP . The final tuning is spot on , more by luck than judgement . I have made a few changes . I never intended to build an exact copy, only that they were in the spirit of the original . These small changes were to get around copyright issues . And yes , I'll build another pair in the future and run them actively .


Richard .

I thought these 2404 were in Iceland, are they in London ? If yes I'll send you a PM, I'm free this evening to listen to them

[dn92]

Hi ,

you can't compare 04 and 02 ... 4003 and 4001 aren't the same to start with. 1.5" and 2" respectively . The 2404 use 1601c woofers ... and yes ,more like the A TS than the others .

My internal volume 183 ltrs subtract 12 for 1601,horn and bracing left me 171 .... there is more bracing in my copy, as that was an issue with the original . There is also no 18mm MDF in my build on 25mm BBP . The final tuning is spot on , more by luck than judgement . I have made a few changes . I never intended to build an exact copy, only that they were in the spirit of the original . These small changes were to get around copyright issues . And yes , I'll build another pair in the future and run them actively .


Richard .

To go active is the best route with these TAD loudspeakers. I did this on my 2402 clones, and will never come back.
If you can, mesure the frequency response at the output of the passive crossover and clone them in a digital crossover. This is what I did with a TN-2 network.